xref: /freebsd-13.1/usr.sbin/fmtree/verify.c (revision 2dfa4b66)
1 /*-
2  * Copyright (c) 1990, 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. Neither the name of the University nor the names of its contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 
30 #if 0
31 #ifndef lint
32 static char sccsid[] = "@(#)verify.c	8.1 (Berkeley) 6/6/93";
33 #endif /* not lint */
34 #endif
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
37 
38 #include <sys/param.h>
39 #include <sys/stat.h>
40 #include <dirent.h>
41 #include <err.h>
42 #include <errno.h>
43 #include <fts.h>
44 #include <fnmatch.h>
45 #include <stdio.h>
46 #include <unistd.h>
47 #include "mtree.h"
48 #include "extern.h"
49 
50 static NODE *root;
51 static char path[MAXPATHLEN];
52 
53 static void	miss(NODE *, char *);
54 static int	vwalk(void);
55 
56 int
mtree_verifyspec(FILE * fi)57 mtree_verifyspec(FILE *fi)
58 {
59 	int rval;
60 
61 	root = mtree_readspec(fi);
62 	rval = vwalk();
63 	miss(root, path);
64 	return (rval);
65 }
66 
67 static int
nsort(const FTSENT * const * a,const FTSENT * const * b)68 nsort(const FTSENT * const *a, const FTSENT * const *b)
69 {
70 	return (strcmp((*a)->fts_name, (*b)->fts_name));
71 }
72 
73 static int
vwalk(void)74 vwalk(void)
75 {
76 	FTS *t;
77 	FTSENT *p;
78 	NODE *ep, *level;
79 	int specdepth, rval;
80 	char *argv[2];
81 	char dot[] = ".";
82 
83 	argv[0] = dot;
84 	argv[1] = NULL;
85 	if ((t = fts_open(argv, ftsoptions, nsort)) == NULL)
86 		err(1, "line %d: fts_open", lineno);
87 	level = root;
88 	specdepth = rval = 0;
89 	while (errno = 0, (p = fts_read(t))) {
90 		if (check_excludes(p->fts_name, p->fts_path)) {
91 			fts_set(t, p, FTS_SKIP);
92 			continue;
93 		}
94 		switch(p->fts_info) {
95 		case FTS_D:
96 		case FTS_SL:
97 			break;
98 		case FTS_DP:
99 			if (specdepth > p->fts_level) {
100 				for (level = level->parent; level->prev;
101 				      level = level->prev);
102 				--specdepth;
103 			}
104 			continue;
105 		case FTS_DNR:
106 		case FTS_ERR:
107 		case FTS_NS:
108 			warnx("%s: %s", RP(p), strerror(p->fts_errno));
109 			continue;
110 		default:
111 			if (dflag)
112 				continue;
113 		}
114 
115 		if (specdepth != p->fts_level)
116 			goto extra;
117 		for (ep = level; ep; ep = ep->next)
118 			if ((ep->flags & F_MAGIC &&
119 			    !fnmatch(ep->name, p->fts_name, FNM_PATHNAME)) ||
120 			    !strcmp(ep->name, p->fts_name)) {
121 				ep->flags |= F_VISIT;
122 				if ((ep->flags & F_NOCHANGE) == 0 &&
123 				    compare(ep->name, ep, p))
124 					rval = MISMATCHEXIT;
125 				if (ep->flags & F_IGN)
126 					(void)fts_set(t, p, FTS_SKIP);
127 				else if (ep->child && ep->type == F_DIR &&
128 				    p->fts_info == FTS_D) {
129 					level = ep->child;
130 					++specdepth;
131 				}
132 				break;
133 			}
134 
135 		if (ep)
136 			continue;
137 extra:
138 		if (!eflag) {
139 			(void)printf("%s extra", RP(p));
140 			if (rflag) {
141 				if ((S_ISDIR(p->fts_statp->st_mode)
142 				    ? rmdir : unlink)(p->fts_accpath)) {
143 					(void)printf(", not removed: %s",
144 					    strerror(errno));
145 				} else
146 					(void)printf(", removed");
147 			}
148 			(void)putchar('\n');
149 		}
150 		(void)fts_set(t, p, FTS_SKIP);
151 	}
152 	if (errno != 0)
153 		err(1, "fts_read()");
154 	(void)fts_close(t);
155 	if (sflag)
156 		warnx("%s checksum: %lu", fullpath, (unsigned long)crc_total);
157 	return (rval);
158 }
159 
160 static void
miss(NODE * p,char * tail)161 miss(NODE *p, char *tail)
162 {
163 	int create;
164 	char *tp;
165 	const char *type, *what;
166 	int serr;
167 
168 	for (; p; p = p->next) {
169 		if (p->flags & F_OPT && !(p->flags & F_VISIT))
170 			continue;
171 		if (p->type != F_DIR && (dflag || p->flags & F_VISIT))
172 			continue;
173 		(void)strcpy(tail, p->name);
174 		if (!(p->flags & F_VISIT)) {
175 			/* Don't print missing message if file exists as a
176 			   symbolic link and the -q flag is set. */
177 			struct stat statbuf;
178 
179 			if (qflag && stat(path, &statbuf) == 0)
180 				p->flags |= F_VISIT;
181 			else
182 				(void)printf("%s missing", path);
183 		}
184 		if (p->type != F_DIR && p->type != F_LINK) {
185 			putchar('\n');
186 			continue;
187 		}
188 
189 		create = 0;
190 		if (p->type == F_LINK)
191 			type = "symlink";
192 		else
193 			type = "directory";
194 		if (!(p->flags & F_VISIT) && uflag) {
195 			if (!(p->flags & (F_UID | F_UNAME)))
196 				(void)printf(" (%s not created: user not specified)", type);
197 			else if (!(p->flags & (F_GID | F_GNAME)))
198 				(void)printf(" (%s not created: group not specified)", type);
199 			else if (p->type == F_LINK) {
200 				if (symlink(p->slink, path))
201 					(void)printf(" (symlink not created: %s)\n",
202 					    strerror(errno));
203 				else
204 					(void)printf(" (created)\n");
205 				if (lchown(path, p->st_uid, p->st_gid) == -1) {
206 					serr = errno;
207 					if (p->st_uid == (uid_t)-1)
208 						what = "group";
209 					else if (lchown(path, (uid_t)-1,
210 					    p->st_gid) == -1)
211 						what = "user & group";
212 					else {
213 						what = "user";
214 						errno = serr;
215 					}
216 					(void)printf("%s: %s not modified: %s"
217 					    "\n", path, what, strerror(errno));
218 				}
219 				continue;
220 			} else if (!(p->flags & F_MODE))
221 			    (void)printf(" (directory not created: mode not specified)");
222 			else if (mkdir(path, S_IRWXU))
223 				(void)printf(" (directory not created: %s)",
224 				    strerror(errno));
225 			else {
226 				create = 1;
227 				(void)printf(" (created)");
228 			}
229 		}
230 		if (!(p->flags & F_VISIT))
231 			(void)putchar('\n');
232 
233 		for (tp = tail; *tp; ++tp);
234 		*tp = '/';
235 		miss(p->child, tp + 1);
236 		*tp = '\0';
237 
238 		if (!create && !uflag)
239 			continue;
240 		if (chown(path, p->st_uid, p->st_gid) == -1) {
241 			serr = errno;
242 			if (p->st_uid == (uid_t)-1)
243 				what = "group";
244 			else if (chown(path, (uid_t)-1, p->st_gid) == -1)
245 				what = "user & group";
246 			else {
247 				what = "user";
248 				errno = serr;
249 			}
250 			(void)printf("%s: %s not modified: %s\n",
251 			    path, what, strerror(errno));
252 		}
253 		if (chmod(path, p->st_mode))
254 			(void)printf("%s: permissions not set: %s\n",
255 			    path, strerror(errno));
256 		if ((p->flags & F_FLAGS) && p->st_flags &&
257 		    chflags(path, p->st_flags))
258 			(void)printf("%s: file flags not set: %s\n",
259 			    path, strerror(errno));
260 	}
261 }
262